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Intumescent Fire Stopping: First, the Science

Intumescent strips and smoke seals contain a substance which, when exposed to heat, swells to increase in volume but not in density. These intumescent substances are therefore very useful in providing a fire-proof smoke seal or barrier when the temperature rises as a result of a fire.

Intumescent Fire Stopping: Two Types for Two Jobs

Intumescents come in two main types:

Soft char intumescents produce a light char (or ash), which is a very poor conductor of heat. They are often coupled with a hydrate, which releases water and therefore keeps the product cool. Once the hydrates have given off their water, the char produced continues to insulate against heat for a period of time.

Hard expanding intumescents are often mixed with graphite or sodium silicates to produce products that expand rapidly to fill spaces. The idea is that fire is prevented from travelling through gaps, holes or openings by the rapidly expanded intumescent products.

Intumescent Fire Door Seals: Automatic Protection That Buys You Time

It is vital that fire doors have an effective seal at all times, so our fire and smoke seals give you a smoke-free environment. For complete protection, our fire, smoke and draft seals offer the best protection possible.

Intumescent Mastic: No Gap Too Far?

Use our fire rated mastics and foams like ordinary sealants, but with the added reassurance of effective fire retardant properties, to keep seals airtight for longer in the event of a fire. Our best-selling fire retardant spray is simple to apply to flameproof fabrics, foam, paper, and untreated woods.

Fire Stopping for Pipes and Ducting; shut that pipe!

Pipes and ducts passing through walls in your premises provide an ideal passage for a fire to travel along - until it meets one of our pipe collars, sleeves or other fire stopping items! Intumescent fire collars and wraps contain a special material that expands inwards to seal the pipes, while fire stop blocks can be tilt into a fire resistant wall that can be easily removed or reconfigured.

Fire door and window fire stopping; seals for every exit

Plug every gap in your windows and doors with our range of intumescent tapes, seal and putty, plus adaptor packs for letterboxes, hinges, locks and even a fire-rated door viewing panel.

Lighting Fire Covers; seal in your ceiling void

Chances are, your office ceiling is made from fire resistant tiles, but every time you remove one to pop in a light fitting, you provide a way in for fire. Our range of lighting covers prevents fire from entering the ceiling void and spreading further by igniting accumulated dust or dirt. Once the cover is in place, you can fit your lighting as normal.

Intumescent fire grilles; smarter than the average grille

Where ventilation is required, these intumescent fire grilles are smarter than the average grille, letting air in and out in normal conditions, and sealing shut for up to 60 minutes in the event of a fire. Available in a range of sizes to suit all applications.

Please note a £10 + vat (£12 inc vat) surcharge will be added for all London postcodes

Optionally, the cost to commission and install (fix to the wall) is £13.00 + vat (£15.60 inc vat). Our technician will place them on stands at no charge if you have purchase these

NOTE - commissioning on-site after delivery is a requirement of British Standard 5306 Part 3, the Fire Safety Order, HMO fire safety guidance, and is commonly required by most insurers. It is not a requirement (but still an option) for a domestic home in single family occupancy

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